Re-Used Planets in DS9

DS9 shows us a smaller number of different
planets than TNG, and fewer planet re-uses too. Still,
we can see several shots of planets more than once, representing a different planet
each time. The stock footage represents up to six different planets. In most cases
the shots remain unchanged in the role as a
different planet, or only the color is slightly adjusted.

Conversely, in a few cases the same planets are represented by different models in different episodes.

In the following, the planets are grouped by
colors and surface features, and listed in descending order of the number of
re-uses. The episodes are listed in production order.

Brown
Planets

Brown planet 1 This planet can be seen in six incarnations in
seven episodes:

Ennis/Nol-Ennis moon ("Battle Lines")

Cardassian moon ("Improbable Cause",
"Treachery, Faith and the Great River")

Teplan homeworld ("The Quickening")

Ajilon Prime ("Nor the Battle to the Strong")

Koralis III ("Chimera")

Sappora VII ("Prodigal Daughter")

The footage of the planet with its smooth craters is occasionally mirrored but otherwise
the planets (or moons) all look the same. It is worth mentioning
that this way the appearance of the Cardassian moon where Odo meets his
informant in "Improbable Cause" and "Treachery, Faith and the Great River"
remains consistent.

Brown planet 2 This planet can be seen in five episodes:

Demilitarized Zone planet ("The Darkness and the
Light")

Marva IV ("For the Uniform")

Unnamed planet ("Waltz")

Tyree ("Shadows and Symbols")

Vanden Prime ("When it Rains...")

The planets all look the same, with characteristic
large craters. In "Waltz" it is one of the planets on which the
crew hopes to find Sisko and Dukat.

Brown planet 3 This planet can be seen in three episodes:

Cardassia IV ("The Homecoming")

Dozaria ("Indiscretion")

Torga IV ("The Ship")

The footage remains unchanged, including the
runabout.

Brown planet 4 This planet can be seen in three episodes:

L-S VI ("The Alternate")

Arawath ("The Wire")

Bopak III ("Hippocratic Oath")

Arawath is a mirror image of the two other planets.
Otherwise they are all identical.

Blue
Planets

Blue planet 1 This planet can be seen in three episodes:

Jeraddo ("Progress")

Lunar V ("The Siege")

Secarus IV ("Blood Oath")

It is curious that Jeraddo and Lunar V are supposed
to be two different inhabitable Bajoran moons but look identical (only that Lunar V appears to
a bit paler).

Blue planet 2 This planet can be seen in two episodes:

Trill Prime ("Equilibrium")

Vandros IV ("To the Death")

The two planets are identical.

Blue planet 3 This one can be seen as two different planets in
the same episode:

Cardassia Prime This planet appears as Cardassia Prime in three
episodes, but also as two other planets:

Karemma homeworld ("The Search, Part I")

Cardassia Prime ("Trials and Tribble-ations",
"The Dogs of War", "What You Leave Behind")

AR-558 ("The Siege of AR-558")

The color of the footage varies (the Karemma
homeworld is bluish, AR-558 is reddish), but the planets are evidently the
same. For the final chapter of DS9 new scenes of Cardassia Prime were
filmed.
Planet Mutations - Cardassia

Earth Shots of Earth were
re-used for the planet Golana.

Earth ("Past Tense, Part I+II",
"Image in the Sand")

Golana ("Time's Orphan")

The views of Golana are all stock footage, partially
with the Defiant in orbit. At least one shot was left-right reversed.